black-crested bulbul, rubigula flaviventris

nature animal bird wildlife plumage beautiful passeriformes thailand birds natural habitat fledgling bill kaeng krachan national park rainforest jungle mountains tropical montane forest unesco world heritage vines leaves migratory migration winter roost roosting tree songbird species foraging wave bamboo feathers green small wings bulbuls black-crested bulbul crest rubigula flaviventris pycnonotidae indian subcontinent vine perch yellow black